A few were having issues with 2.0-beta through to 2.0-beta4, some people have been using 2.0-betaX without issues.

2.0-beta5 aims to fix any issues people are having with upgrading from 1.3.

If you're still having issues, please:

* If the 'save and preview' button doesn't do anything at all, Clear your browser cache
* Make sure you're using a modern browser - latest chrome, firefox and safari
* Re-save your slideshows
* If you're seeing RED error messages (added in the last version), then check your upload folder file permissions
* If you're seeing other error messages, report back here with a link to your site and as much detail as possible

If you're NOT having issues, I'd also like to know that its working for you!